Therapeutic instrument.



T. LIDBERG.

THERAPEUTIC INSTRUMENT.

APPLICATION FILED 05c. I8, 1916.

Patented Sept. 24, 1918.

lgmom Ziodo .Zldef citizen of the United "States,

stant temperature by arena ornron TIODOLF LIDBERG, OF. CHICAGO,ILLINOIS.

THERAIEUTIC INSTRUMENT.

asaosa To all whom it may concern:

Be it known that I, TIODOLF LIDBERG, a

residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Therapeutic Instruments,of which the following is a specificat1on.

My invention relates to improvements in 'electro-therapeutic instrumentsfor orificial application, whereby to maintain constant, any desiredtemperature, of the operative portions of the instrument, preferablybelow that required to cauterize or directly destroy the tissues withwhich it may be brought into contact.

One of the especial objects of my invention is to provide an instrumentof this character adapted for medical treatment, and especially fororificial application, whereby to automatically maintain a constant, butregulable temperature, by means contained in the heated zone, orpreferably within the applicator of the instrument, near the point ofapplication, and to pro vide, in such an instrument, a heat-responsivetemperature indicator, preferably withinthe applicator, and having anexterior portion located outside of the applicator,

provided with suitable graduations that it may be visible at all timesto the operator or attending physician, whereby the temperature of theapplicator is indicated.

Another object of my invention is to provide two or more applicators,capable of being connected together and automatically controllable tomaintain, substantially, cona single heat respon-' sive regulator.

Other, and further objects of my invention will become readily apparent,to persons skilled in the art, from a consideration of the followingdescription when taken in conjunction with the drawings, wherein:--

The spring blade 49 extends vertically,

- substantially parallel with the heating coil 22, and has its remoteend inturned, asat 70, to provide a means for connection to the terminal71 of the spring'jack switch plug 28. The switch plug terminal 71 isconnected to a wire 72, and the switch ring or terminal 27, is connectedto a wire 73, for

connection to another applicator of similar character, or to anapplicator 74, as shown. The applicator 74 consists of a two partspectively, so as to be removed from the head 82, to connect and todisconnect the heating coil 7 8. The wires 72 and 73, of a duplex cord,are connected to the terminals 85 and 86, respectively, and are alsoconnected to the terminals 27 and 71 of the Specification of LettersPatent. Patented Sept, 24L, 1918,, Application filed December 18, 1916.Serial No. 137,48

spring-jack plug 28. When it is desired to connect the heating coil 78,of the applicator 74:, in circuit with the'heating coil 22 of theapplicator 11, it is only necessary to "insert the plug 28, intoposition shown in the figure. When the applicator 11 is to be usedalone, then the cap 69 is removed from the upper end of the applicatortube 65 and a similar imperforate cap is substituted.

When the applicator 74 is being used the instrument containing thecurrent-regulator may be hung upon the wall or supported in any otherconvenient manner adjacent to the position of the applicator 74.

While I have herein shown a single embodiment of my invention, for thepurpose of clear disclosure, it is manifest to persons skilled in theart that many changes may be made in the general arrangement andconfiguration of the parts within the scope of the appended claims.

Having described my invention, what I claim is:-

1. An electro-tlwrmie applicator comprising a heatingelement; aheat-responsive, cul'rent-eontrolling regulator: a tube. or jacketclosed at one end. covering said instrumentalities and having areplaceable perforated cap through which to insert a connecting plug, agraduated temperature indicator, the graduations of which are withoutsaid jacket, and a connecting plug bearing terminals whereby to connectanother applicator to the circuit, including said regulator, within saidjacket.

2. An electro-thermic applicator comprising an elongated tube having aclosed, curved end; a heating element therein localized in the curvedend of the tube leaving the straight portion thereof relatively unin aplug receptacle and a connecting plug, heated, and-wires connected tothe heating bearing terminals to connect said applicaelement passingthrough the straight portor to an electric circuit. tion of the tube. Intestimony whereof I hereunto set my 3. An electro-therlnic applicatorcompris; hand in the presence of two subscribing Wit- 15 'ing anelongated tube of substantially uninesses.

form diameter having a closed obtuse end 1 TIODOLF LIDBERG. to providearound heating surface; a heat- In the presence of- 1 ing element nearthe closed end thereof; -STANLEY W. 000K,

M Wires leading through the tube terminating MARY F. ALLEN.

